SBE code restructure: Build directory setup

Change-Id: I5727522fe885260dde54a94b9ae37fd1382a76ff
RTC:159709
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/28888
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>
Reviewed-by: Sachin Gupta <sgupta2m@in.ibm.com>

4 files changed, 447 insertions, 0 deletions

diff --git a/src/build/linkerscripts/linkloader.cmd b/src/build/linkerscripts/linkloader.cmd
new file mode 100755
index 00000000..75c460d4
--- /dev/null
+++ b/src/build/linkerscripts/linkloader.cmd
@@ -0,0 +1,96 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/build/linkerscripts/linkloader.cmd $                      */
+/*                                                                        */
+/* OpenPOWER sbe Project                                                  */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2015,2016                        */
+/*                                                                        */
+/*                                                                        */
+/* Licensed under the Apache License, Version 2.0 (the "License");        */
+/* you may not use this file except in compliance with the License.       */
+/* You may obtain a copy of the License at                                */
+/*                                                                        */
+/*     http://www.apache.org/licenses/LICENSE-2.0                         */
+/*                                                                        */
+/* Unless required by applicable law or agreed to in writing, software    */
+/* distributed under the License is distributed on an "AS IS" BASIS,      */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
+/* implied. See the License for the specific language governing           */
+/* permissions and limitations under the License.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+
+// Need to do this so that elf32-powerpc is not modified!
+#undef powerpc
+
+#ifndef BASE_LOADER_STACK_SIZE
+#define BASE_LOADER_STACK_SIZE 128
+#endif
+#include "../sbe_link.H"
+
+OUTPUT_FORMAT(elf32-powerpc);
+
+MEMORY
+{
+ sram : ORIGIN = SBE_LOADER_BASE_ORIGIN, LENGTH = SBE_LOADER_BASE_LENGTH
+}
+
+SECTIONS
+{
+    . = SBE_LOADER_BASE_ORIGIN;
+
+    ////////////////////////////////
+    // Read-only Data
+    ////////////////////////////////
+
+    . = ALIGN(8);
+    _RODATA_SECTION_BASE = .;
+
+   .text . : { *(.text) } > sram
+   .data  . : { *(.data) } > sram
+
+    // SDA2 constant sections .sdata2 and .sbss2 must be adjacent to each
+    // other.  Our SDATA sections are small so we'll use strictly positive
+    // offsets.
+
+    _SDA2_BASE_ = .;
+   .sdata2 . : { *(.sdata2) } > sram
+   .sbss2  . : { *(.sbss2) } > sram
+
+   // Other read-only data.
+
+   .rodata . : { *(.rodata*) *(.got2) } > sram
+
+    _RODATA_SECTION_SIZE = . - _RODATA_SECTION_BASE;
+
+    ////////////////////////////////
+    // Read-write Data
+    ////////////////////////////////
+
+    . = ALIGN(8);
+    _DATA_SECTION_BASE = .;
+
+    // SDA sections .sdata and .sbss must be adjacent to each
+    // other.  Our SDATA sections are small so we'll use strictly positive
+    // offsets.
+
+    _SDA_BASE_ = .;
+    .sdata  . : { *(.sdata)  } > sram
+    .sbss   . : { *(.sbss)   } > sram
+
+    // Other read-write data
+    // It's not clear why boot.S is generating empty .glink,.iplt
+
+   .rela   . : { *(.rela*) } > sram
+   .rwdata . : { *(.data) *(.bss) } > sram
+
+   _BASE_LOADER_STACK_LIMIT = .;
+   . = . + BASE_LOADER_STACK_SIZE;
+   _BASE_LOADER_STACK_LIMIT = . - 1;
+
+    . = ALIGN(8);
+    _loader_end = . - 0;
+
+}
diff --git a/src/build/linkerscripts/linkotprom.cmd b/src/build/linkerscripts/linkotprom.cmd
new file mode 100644
index 00000000..19d636b0
--- /dev/null
+++ b/src/build/linkerscripts/linkotprom.cmd
@@ -0,0 +1,43 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/build/linkerscripts/linkotprom.cmd $                      */
+/*                                                                        */
+/* OpenPOWER sbe Project                                                  */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2016                             */
+/*                                                                        */
+/*                                                                        */
+/* Licensed under the Apache License, Version 2.0 (the "License");        */
+/* you may not use this file except in compliance with the License.       */
+/* You may obtain a copy of the License at                                */
+/*                                                                        */
+/*     http://www.apache.org/licenses/LICENSE-2.0                         */
+/*                                                                        */
+/* Unless required by applicable law or agreed to in writing, software    */
+/* distributed under the License is distributed on an "AS IS" BASIS,      */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
+/* implied. See the License for the specific language governing           */
+/* permissions and limitations under the License.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+
+// Need to do this so that elf32-powerpc is not modified!
+#undef powerpc
+
+#include "sbe_link.H"
+
+OUTPUT_FORMAT(elf32-powerpc);
+
+MEMORY
+{
+ sram : ORIGIN = OTPROM_ORIGIN, LENGTH = OTPROM_BLOCK_SIZE
+}
+
+SECTIONS
+{
+    . = OTPROM_ORIGIN;
+    .text  . : { *(.text)}
+    . = OTPROM_FIXED_SIZE;
+    .fixed . : { *(.fixed)}
+}
diff --git a/src/build/linkerscripts/linksbe.cmd b/src/build/linkerscripts/linksbe.cmd
new file mode 100644
index 00000000..4e1832f6
--- /dev/null
+++ b/src/build/linkerscripts/linksbe.cmd
@@ -0,0 +1,108 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/build/linkerscripts/linksbe.cmd $                         */
+/*                                                                        */
+/* OpenPOWER sbe Project                                                  */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2015,2016                        */
+/*                                                                        */
+/*                                                                        */
+/* Licensed under the Apache License, Version 2.0 (the "License");        */
+/* you may not use this file except in compliance with the License.       */
+/* You may obtain a copy of the License at                                */
+/*                                                                        */
+/*     http://www.apache.org/licenses/LICENSE-2.0                         */
+/*                                                                        */
+/* Unless required by applicable law or agreed to in writing, software    */
+/* distributed under the License is distributed on an "AS IS" BASIS,      */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
+/* implied. See the License for the specific language governing           */
+/* permissions and limitations under the License.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+
+// Need to do this so that elf32-powerpc is not modified!
+#undef powerpc
+
+#ifndef INITIAL_STACK_SIZE
+#define INITIAL_STACK_SIZE 256
+#endif
+#include <sbe_link.H>
+
+OUTPUT_FORMAT(elf32-powerpc);
+
+MEMORY
+{
+ // increasing ram size as workaround so that pibmem image compilation
+ // doe not fail.
+ // TODO: Reducing the SBE_BASE_ORIGIN by 0x1F000 to reduce the size of
+ // generated sbe_pibmem.bin. Just a workaround to use pibmem for poweron
+ sram : ORIGIN = SBE_BASE_ORIGIN - 0x1F000, LENGTH = SBE_BASE_LENGTH + 0x1F000
+}
+
+SECTIONS
+{
+    . = SBE_BASE_ORIGIN - 0x1F000;
+
+    .vectors : {. = ALIGN(512); *(.vectors)} > sram
+    .fixed . : {. = ALIGN(512); *(.fixed) } > sram
+    .text . : {. = ALIGN(512); *(.text)} > sram
+
+    ////////////////////////////////
+    // Read-only Data
+    ////////////////////////////////
+
+    . = ALIGN(8);
+    _RODATA_SECTION_BASE = .;
+
+    // SDA2 constant sections .sdata2 and .sbss2 must be adjacent to each
+    // other.  Our SDATA sections are small so we'll use strictly positive
+    // offsets.
+
+    _SDA2_BASE_ = .;
+   .sdata2 . : { *(.sdata2*) } > sram
+   .sbss2  . : { *(.sbss2*) } > sram
+
+   // Other read-only data.
+
+    . = ALIGN(8);
+    .rodata . : { ctor_start_address = .;
+                  *(.ctors) *(.ctors.*)
+                  ctor_end_address = .;
+                  *(rodata*) *(.got2) } > sram
+
+    _RODATA_SECTION_SIZE = . - _RODATA_SECTION_BASE;
+
+    ////////////////////////////////
+    // Read-write Data
+    ////////////////////////////////
+
+    . = ALIGN(8);
+    _DATA_SECTION_BASE = .;
+
+    // SDA sections .sdata and .sbss must be adjacent to each
+    // other.  Our SDATA sections are small so we'll use strictly positive
+    // offsets.
+
+    _SDA_BASE_ = .;
+    .sdata  . : { *(.sdata*)  } > sram
+    _sbss_start = .;
+    .sbss   . : { *(.sbss*)   } > sram
+    _sbss_end = .;
+
+    // Other read-write data
+    // It's not clear why boot.S is generating empty .glink,.iplt
+
+   .rela   . : { *(.rela*) } > sram
+   .rwdata . : { *(.data*) *(.bss*) } > sram
+
+    . = ALIGN(8);
+   _PK_INITIAL_STACK_LIMIT = .;
+   . = . + INITIAL_STACK_SIZE;
+   _PK_INITIAL_STACK = . - 1;
+
+    . = ALIGN(8);
+    _sbe_end = . - 0;
+
+}
diff --git a/src/build/linkerscripts/linkseeprom.cmd b/src/build/linkerscripts/linkseeprom.cmd
new file mode 100644
index 00000000..7cbbcda4
--- /dev/null
+++ b/src/build/linkerscripts/linkseeprom.cmd
@@ -0,0 +1,200 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/build/linkerscripts/linkseeprom.cmd $                     */
+/*                                                                        */
+/* OpenPOWER sbe Project                                                  */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2015,2016                        */
+/*                                                                        */
+/*                                                                        */
+/* Licensed under the Apache License, Version 2.0 (the "License");        */
+/* you may not use this file except in compliance with the License.       */
+/* You may obtain a copy of the License at                                */
+/*                                                                        */
+/*     http://www.apache.org/licenses/LICENSE-2.0                         */
+/*                                                                        */
+/* Unless required by applicable law or agreed to in writing, software    */
+/* distributed under the License is distributed on an "AS IS" BASIS,      */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
+/* implied. See the License for the specific language governing           */
+/* permissions and limitations under the License.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+// Need to do this so that elf32-powerpc is not modified!
+#undef powerpc
+#include <sbe_link.H>
+OUTPUT_FORMAT(elf32-powerpc);
+
+#ifndef INITIAL_STACK_SIZE
+#define INITIAL_STACK_SIZE 256
+#endif
+
+MEMORY
+{
+    pibmem : ORIGIN = SBE_BASE_ORIGIN, LENGTH = SBE_BASE_LENGTH
+    seeprom : ORIGIN = SBE_SEEPROM_BASE_ORIGIN, LENGTH = 0x40000
+}
+
+SECTIONS
+{
+    . = SBE_SEEPROM_BASE_ORIGIN;
+      _sbe_image_start_addr = . + SIZEOF_HEADERS;
+
+      // TODO via RTC 149153
+      // It seems first section in elf image is 8 byte aligned.
+      // We need to verify this assumption.
+
+      // Get 8 byte alligned address
+      _sbe_image_start_addr = ( ( _sbe_image_start_addr % 8)  == 0 ) ? _sbe_image_start_addr : ( _sbe_image_start_addr + ( 8 - ( _sbe_image_start_addr % 8)));
+
+     // Get the image offset after elf header
+     _sbe_image_start_offset = _sbe_image_start_addr - .;
+     _seeprom_origin = . - 0;
+     _pibmem_origin = SBE_BASE_ORIGIN;
+
+    ////////////////////////////////
+    // Header
+    ////////////////////////////////
+    .header : {
+        _header_origin = .; _header_offset = . - _seeprom_origin; *(.header);
+    } > seeprom
+    _header_size = . - _header_origin;
+
+    // @TODO via RTC 136215
+    // We have used allignment 0x1000 so that it can be found
+    // at fixed location. once otprom loader support is enabled.
+    // alligment will not be required.
+
+    ////////////////////////////////
+    // LOADER_TEXT
+    ////////////////////////////////
+    .loader_text ALIGN(0x1000): {
+      _loader_text_origin = .; _loader_text_offset = . - _seeprom_origin;
+      *(.loader_text);
+    } > seeprom
+     _loader_text_size = . - _loader_text_origin;
+
+    // @TODO via RTC 136215
+    // loader_text section should come after fixed and related
+    // sections as we want fixed section at knowon offset. Currently we
+    // have shared SEEPROM start address ( IVPR register value ) with
+    // multiple teams. So keeping loader_text as first section. Once
+    // WE have otprom loader support, we will put loader_text at right
+    // position
+
+    ////////////////////////////////
+    // FIXED
+    ////////////////////////////////
+    .fixed  ALIGN(0x200) : {
+      _fixed_origin = .; _fixed_offset = . - _seeprom_origin;
+     *(.fixed)
+    } > seeprom
+     _fixed_size = . - _fixed_origin;
+
+   ////////////////////////////////
+    // FIXED_TOC
+    ////////////////////////////////
+    .fixed_toc ALIGN(8) : {
+        _fixed_toc_origin = .; _fixed_toc_offset = . - _seeprom_origin;  *(.fixed_toc);
+    } > seeprom
+    _fixed_toc_size = . - _fixed_toc_origin;
+
+   ////////////////////////////////
+    // TOC
+    ////////////////////////////////
+    .toc ALIGN(4): {
+        _toc_origin = .; _toc_offset = . - _seeprom_origin;  *(.toc);
+    } > seeprom
+    _toc_size = . - _toc_origin;
+
+   ////////////////////////////////
+    // STRING
+    ////////////////////////////////
+    .strings : {
+         _strings_origin = .; _strings_offset = . - _seeprom_origin; *(.strings);
+    } > seeprom
+    _strings_size = . - _strings_origin;
+
+    .text ALIGN(8): {
+         _text_origin = .; _text_offset = . - _seeprom_origin;
+        *\libcore.a:(.text* ) *\libcache.a:(.text* ) *\libperv.a:(.text* )} > seeprom
+     _text_size = . - _text_origin;
+
+    _seeprom_size = . - _seeprom_origin;
+
+    // TODO via RTC 149153
+    // It seems when we jump across memory region, elf creates 32 byte offset.
+    // We need to verify this assumption.
+
+    _seeprom_size_with_elf_hdr = _seeprom_size + _sbe_image_start_offset;
+    _seeprom_size = ( ( _seeprom_size_with_elf_hdr % 32)  == 0 ) ? _seeprom_size : ( _seeprom_size + ( 32 - (_seeprom_size_with_elf_hdr % 32)));
+
+
+    . = _pibmem_origin;
+    _base_origin = .;
+    _base_offset = . - _base_origin + _seeprom_size;
+
+    .pkVectors ALIGN(32) : {
+            *(.vectors)
+     } > pibmem
+
+    .base . : {
+                *(.text*) *(.eh_frame) *(.dtors*);
+             } > pibmem
+
+    . = ALIGN(8);
+    _RODATA_SECTION_BASE = .;
+
+    // SDA2 constant sections .sdata2 and .sbss2 must be adjacent to each
+    // other.  Our SDATA sections are small so we'll use strictly positive
+    // offsets.
+
+    _SDA2_BASE_ = .;
+   .sdata2 . : { *(.sdata2*) } > pibmem
+   .sbss2  . : { *(.sbss2*) } > pibmem
+
+    . = ALIGN(8);
+    .rodata . : {
+                  ctor_start_address = .;
+                  *(.ctors) *(.ctors.*)
+                  ctor_end_address = .;
+                  *(.rodata*) *(.got2);
+     } > pibmem
+    _RODATA_SECTION_SIZE = . - _RODATA_SECTION_BASE;
+
+
+    . = ALIGN(8); _DATA_SECTION_BASE = .;
+    _SDA_BASE_ = .;
+    .data . : {
+              *(.data*)  *(.comment)
+     } > pibmem
+    .sdata  . : { *(.sdata*)  } > pibmem
+    . = ALIGN(8);
+
+    // We do not want to store bss section in sbe image as laoder will take
+    // care of it while loading image on PIBMEM. It will save us space in
+    // SEEPROM. So define XIP image related variables here so that SBE image
+    // finishes here.
+
+    _base_size = . - _base_origin;
+    _pibmem_size = . - _pibmem_origin;
+    _sbe_image_size = _seeprom_size  + ( . - _pibmem_origin );
+
+    _sbss_start = .;
+    .sbss   . : {
+    *(.bss*) *(.sbss*);
+    . = ALIGN(8);
+   } > pibmem
+    _sbss_end = .;
+
+    . = ALIGN(8);
+    _sbss_size = SIZEOF(.sbss);
+
+    . = ALIGN(8);
+   _PK_INITIAL_STACK_LIMIT = .;
+   . = . + INITIAL_STACK_SIZE;
+   _PK_INITIAL_STACK = . - 1;
+    . = ALIGN(8);
+
+}